[stockinglover21]

This is something that happened a very long time ago.

We were attending a gathering of my wife’s family on Christmas time. There were far too many people for the size of the room and some were sitting on the floor and others on edge of armchairs or standing.

Wife’s step sister was on floor with a very short dress and showing a huge amount of leg. She was in front of me and I had a great view up her skirt. She knew what she was showing and what I could see. After an hour or so she stood up and said her bum was sore and sat on the arm of my armchair. Another family member complained about the floor and she saId take my seat. Instead of getting up she slid on my lap.

Her very tight bum was in my lap and she intentionally moved around. The inevitable happened and my cock went hard and she moved against it. She was moving intermittently and slow. Nobody would know what she was doing but my cock sure did. My left side was away from everybody and so I place my hand on her bare thigh to ostensibly steady her. I moved higher and she raised that side a little by turning more to the other side giving me greater access.

For the next hour or so I groped her thigh and bum and she used her bum to rub against my cock. I could not last much longer. I was dripping loads of pre cum and was certain I was going to shoot my load in my pants. I moved her off me went to the bathroom and three strokes later I just erupted into my hand. I washed it off in the sink and went back downstairs. She had moved into my seat and I just sat on the edge and talked. She kept smiling at me as if she knew that I had had to go and jerk off but nothing was said and nothing more happened.